I would advise you to check the fitment, but the “01” picture appears to me to show the fuel tank fuel filter element still attached to it’s retaining nut, where the nut presses into the fuel shut-off valve. As the pictures are quite small for me to see, “02” might be where a portion of the fuel filter element was broken-off. We do have new old stock fuel filter elements, but the nut would have to be removed and reinstalled into the fuel shut-off valve, or another (carefully) created from a larger brass or stainless “square nut”. (stove bolt nut). I would apply some Teflon pipe sealant to the fuel shut-off valve threads before installing to the fuel tank to better ensure against an external fuel leak..
Regards,
Joe
